Adsorption of Lead Ions from Aqueous Solutions onto Rice Husks, Continuous System

被引：5
|
作者：
Hawal, Laith Hamdan [1 ]
Al-Sulttani, Ali Omran [2 ]
Kariem, Nagam Obaid [1 ]
机构：
[1] Mustansiriyah Univ, Dept Environm Engn, Baghdad, Iraq
[2] Univ Baghdad, Coll Engn, Water Resources Engn Dept, Baghdad, Iraq
来源：
JOURNAL OF ECOLOGICAL ENGINEERING | 2021年 / 22卷 / 10期
关键词：
adsorption; lead; rice husks; removal capacity; pH; OXIDE;
D O I：
10.12911/22998993/141936
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
The continuous system of lead adsorption on rice husks was investigated in this paper. A fixed bed study was performed in many tests to investigate the influence of pH, the adsorbent height, the initial concentration of lead, the flow rate and processing time on the lead adsorption process. The results demonstrated that the lead removal capacity decreased when the pH value of the solution and the flow rate increased. The lead removal capacity increased due to the decreased initial concentration of lead. The results showed that the removal capacity increases along with the processing time and the adsorbent height in column. The largest removal was (81%) at pH of 4, the adsorbent height (50 cm), the initial concentration of lead (10 mg/l), the processing time (90 min.) and the flow rate (10 ml/min.). As a result, rice husks can be used to remove the lead instead of expensive commercial adsorbents, due to its availability, inexpensive and perfect adsorption property.
引用
收藏
页码：269 / 274
页数：6
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